Currently, the Lunar Client store only lets you preview one cosmetic at a time, which makes it hard to see how different items look together. A multi-cosmetic preview would let players equip several cosmetics (cloak, wings, hat, pet, etc.) on the 3D model (what you can already do when you click a singular item) at once so they can test combos before buying.
This would make the store way more useful and help players avoid buying cosmetics that don’t look good together.